Management of Weeds in Maize by Sequential or Individual Applications of Pre- and Post-Emergence Herbicides

Weeds impose serious problems in maize (corn) production, resulting reduced crop yields and lower profits for farmers. The adverse effects of weeds have been attributed to the competition with plants light, water, nutrients, which can result growth yield crop. In this context, effective weed management is important minimize negative impact on production. This be achieved through a combination cultural, mechanical, chemical control methods. use pre-emergence post-emergence herbicides as sequential or individual applications these an way manage maize. Two consecutive field experiments were conducted 2019 2020 order determine efficacy Dimethenamid-P + Terbuthylazine Isoxaflutole Thiencarbazone methyl Cyprosulfamide pre- emergence. On other hand, Mesotrione Nicosulfuron Dicamba used herbicides. also assayed corn related parameters. regard, we designed experiment randomized complete block design four replications. Accordingly, effect varied according active ingredients herbicide species. addition, effectiveness assessment times. lowest was found E. crus-galli, obtained from (MN) (35%) plots. Other showed high (95–100%). Concerning values both years, highest cob length, diameter, 1000-grain weight, plant height weed-free plots grain checks 12.88 tons/ha 12.37 tons/ha, respectively. weedy years. Our findings demonstrate that post- emergence option.